Controlling accounts receivable is a challenge for any small business owner. You are so relieved and happy when you make a new sale and you send out an invoice. The problem is sending an invoice is only half the battle; you still need to get paid. I don't consider a new client closed until funds have been received and cleared the bank. Managing cash flow is so important for a small business so you need to stay on top of it. Controlling your accounts receivable is a great way to help maintain a healthy cash flow. Here are five ways to control your accounts receivable.